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-rw-r--r--net/dcb/dcbnl.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c
index d5074a567289..2e6dcf2967e2 100644
--- a/net/dcb/dcbnl.c
+++ b/net/dcb/dcbnl.c
@@ -1224,6 +1224,54 @@ err:
return err;
}
+static int dcbnl_build_peer_app(struct net_device *netdev, struct sk_buff* skb)
+{
+ struct dcb_peer_app_info info;
+ struct dcb_app *table = NULL;
+ const struct dcbnl_rtnl_ops *ops = netdev->dcbnl_ops;
+ u16 app_count;
+ int err;
+
+
+ /**
+ * retrieve the peer app configuration form the driver. If the driver
+ * handlers fail exit without doing anything
+ */
+ err = ops->peer_getappinfo(netdev, &info, &app_count);
+ if (!err && app_count) {
+ table = kmalloc(sizeof(struct dcb_app) * app_count, GFP_KERNEL);
+ if (!table)
+ return -ENOMEM;
+
+ err = ops->peer_getapptable(netdev, table);
+ }
+
+ if (!err) {
+ u16 i;
+ struct nlattr *app;
+
+ /**
+ * build the message, from here on the only possible failure
+ * is due to the skb size
+ */
+ err = -EMSGSIZE;
+
+ app = nla_nest_start(skb, DCB_ATTR_IEEE_PEER_APP);
+ if (!app)
+ goto nla_put_failure;
+
+ for (i = 0; i < app_count; i++)
+ NLA_PUT(skb, DCB_ATTR_IEEE_APP, sizeof(struct dcb_app),
+ &table[i]);
+
+ nla_nest_end(skb, app);
+ }
+ err = 0;
+
+nla_put_failure:
+ kfree(table);
+ return err;
+}
/* Handle IEEE 802.1Qaz GET commands. */
static int dcbnl_ieee_get(struct net_device *netdev, struct nlattr **tb,
@@ -1288,6 +1336,27 @@ static int dcbnl_ieee_get(struct net_device *netdev, struct nlattr **tb,
spin_unlock(&dcb_lock);
nla_nest_end(skb, app);
+ /* get peer info if available */
+ if (ops->ieee_peer_getets) {
+ struct ieee_ets ets;
+ err = ops->ieee_peer_getets(netdev, &ets);
+ if (!err)
+ NLA_PUT(skb, DCB_ATTR_IEEE_PEER_ETS, sizeof(ets), &ets);
+ }
+
+ if (ops->ieee_peer_getpfc) {
+ struct ieee_pfc pfc;
+ err = ops->ieee_peer_getpfc(netdev, &pfc);
+ if (!err)
+ NLA_PUT(skb, DCB_ATTR_IEEE_PEER_PFC, sizeof(pfc), &pfc);
+ }
+
+ if (ops->peer_getappinfo && ops->peer_getapptable) {
+ err = dcbnl_build_peer_app(netdev, skb);
+ if (err)
+ goto nla_put_failure;
+ }
+
nla_nest_end(skb, ieee);
nlmsg_end(skb, nlh);